Crustdata for AI agents
Crustdata provides real-time company and people data for B2B sales and investing, giving teams live signals instead of static, stale contact lists. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Crustdata.
Search companies by criteria
Search companies matching criteria like headcount growth before building a target list.
Check a company's headcount trend
Fetch a company's headcount timeseries to spot hiring trends before a sales call.
Find decision makers at a company
Filter decision makers at a target company before starting a new outreach sequence.
15 Crustdata actions, graded by risk.
Every Crustdata action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
7Look things up. Allowed by default.
- crustdata.search_companies_with_filtersSearch companies with filters
- crustdata.search_for_job_id_in_screenerSearch for job id in screener
- crustdata.search_linked_in_posts_by_keywordSearch linkedin posts by keyword
- crustdata.validate_credentialValidate API Credentials
- crustdata.retrieve_linked_in_postsRetrieve linkedin posts
- crustdata.fetch_investor_portfolio_dataFind companies by investor
- crustdata.fetch_headcount_by_facet_timeseriesFetch headcount by facet timeseries
write
8Create and change things. Allow, or ask the user first.
- crustdata.post_web_traffic_dataPost web traffic data
- crustdata.post_job_listings_table_dataSearch indexed job listings
- crustdata.post_headcount_timeseries_dataPost headcount timeseries data
- crustdata.post_funding_milestone_time_series_dataPost funding milestone timeseries data
- crustdata.enrich_person_screenerEnrich person screener
- crustdata.filter_decision_makers_dataFilter decision makers data
- crustdata.screener_company_informationScreener company information
- crustdata.screen_metrics_and_filter_conditionsScreen metrics and filter conditions
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Crustdata in three steps.
- 01Your users connect CrustdataThey add their Crustdata api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “post web traffic data” can wait for the user to approve.
- 03Any agent can actYour agent calls Crustdata through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('crustdata', { read: 'allow', write: 'ask', // post_web_traffic_data destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Crustdata connects.
Users add their Crustdata api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Crustdata connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Crustdata from any agent.
Crustdata and Arc0, answered.
Can I use Crustdata with Claude, ChatGPT or Cursor?
Yes. Connect Crustdata to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Crustdata actions you allow.
How do users connect Crustdata?
Users add their Crustdata api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Crustdata actions can my agent take?
15 in total: 7 read, 8 write and 0 destructive, such as “post web traffic data”. Your policies decide which of them each agent may call.
Can I make my agent read-only in Crustdata?
Yes. Allow read actions and deny writes in the Crustdata policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Crustdata too?
Yes. The same Crustdata connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Crustdata into your agent.
Your users connect Crustdata once, under your brand. Your agent gets 15 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan